A well-designed three-dimensional ternary hierarchical co-axial ZnO@ZnS heteroarchitecture decorated electrospun carbon hollow tube nanofibrous mat: improved ultraviolet-light photocatalytic performance

文献情報

出版日 2013-10-29

DOI 10.1039/C3CE41513A

インパクトファクター 3.545

著者

Zahed Shami, Naser Sharifi-Sanjani

原文を見る

要旨

A novel, efficient and versatile strategy was successfully developed to fabricate a well-designed three dimensional photocatalytic ternary hierarchical coaxial ZnO@ZnS heteroarchitecture decorated electrospun carbon hollow tube nanofibrous mat (ZnO@ZnS/C). Photocatalytic ternary coaxial ZnO@ZnS/C hollow tube mats showed an enhanced performance in the degradation of the pollutant methyl orange (MO), which may be attributed to the remarkable synergistic effect between ZnO, ZnS and graphitic carbon hollow tube fibers with a novel morphology and a unique porosity, where the ZnO and ZnS semiconductors act as improved ultraviolet-light absorbers and charge-transfer carriers, and the graphitic carbon hollow tube nanofibrous mats not only provide an appropriate porous support for the well-dispersed semiconductors, and for trapping of organic pollutants, but also act as an electron acceptor, which prolongs the electron lifetime of the excited semiconductor and decreases the recombination rate of the photo-induced electron–hole pairs. Improved efficiency and reusability in the degradation of MO dye makes the coaxial ZnO@ZnS/C hollow heteroarchitectures a commercially promising candidate for the photocatalytic treatment of dye effluent.

掲載誌

CrystEngComm

CiteScore: 5.5

自己引用率: 7.7%

年間論文数: 643

CrystEngComm is the forum for the design and understanding of crystalline materials. We welcome studies on the investigation of molecular behaviour within crystals, control of nucleation and crystal growth, engineering of crystal structures, and construction of crystalline materials with tuneable properties and functions. We publish hypothesis-driven research into… how crystal design affects thermodynamics, phase transitional behaviours, polymorphism, morphology control, solid state reactivity (crystal-crystal solution-crystal, and gas-crystal reactions), optoelectronics, ferroelectric materials, non-linear optics, molecular and bulk magnetism, conductivity and quantum computing, catalysis, absorption and desorption, and mechanical properties. Using Techniques and methods including… Single crystal and powder X-ray, electron, and neutron diffraction, solid-state spectroscopy, spectrometry, and microscopy, modelling and data mining, and empirical, semi-empirical and ab-initio theoretical evaluations. On crystalline and solid-state materials. We particularly welcome work on MOFs, coordination polymers, nanocrystals, host-guest and multi-component molecular materials. We also accept work on peptides and liquid crystals. All papers should involve the use or development of a design or optimisation strategy. Routine structural reports or crystal morphology descriptions, even when combined with an analysis of properties or potential applications, are generally considered to be outside the scope of the journal and are unlikely to be accepted.